Home / 28,639.68-39,523.44-16,065.36

Finding the Fourth Proportional to 28,639.68, 39,523.44 and 16,065.36

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Solution

The fourth proportional to 28,639.68, 39,523.44 and 16,065.36 is: 22,170.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,639.68 : 39,523.44 = 16,065.36 : x
  2. Step 2: Convert to fraction form
    28,639.68/39,523.44 = 16,065.36/x
  3. Step 3: Cross multiply
    28,639.68x = 39,523.44 × 16,065.36
  4. Step 4: Simplify right side
    28,639.68x = 634,958,292.04
  5. Step 5: Solve for x
    x = 634,958,292.04/28,639.68
  6. Step 6: Final answer
    x = 22,170.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.